--- _id: '22724' abstract: - lang: eng text: "\r\nPredictive Maintenance as a desirable maintenance strategy in industrial applications relies on suitable condition monitoring solutions to reduce costs and risks of the monitored technical systems. In general, those solutions utilize model-based or data-driven methods to diagnose the current state or predict future states of monitored technical systems. However, both methods have their advantages and drawbacks. Combining both methods can improve uncertainty consideration and accuracy. Different combination approaches of those hybrid methods exist to exploit synergy effects. The choice of an appropriate approach depends on different requirements and the goal behind the selection of a hybrid approach.\r\n\r\n \r\n\r\nIn this work, the hybrid approach for estimating remaining useful lifetime takes potential uncertainties into account. Therefore, a data-driven estimation of new measurements is integrated within a model-based method. To consider uncertainties within the system, a differentiation between different system behavior is realized throughout diverse states of degradation.\r\n\r\nThe developed hybrid prediction approach bases on a particle filtering method combined with a machine learning method, to estimate the remaining useful lifetime of technical systems. Particle filtering as a Monte Carlo simulation technique is suitable to map and propagate uncertainties. Moreover, it is a state-of-the-art model-based method for predicting remaining useful lifetime of technical systems. To integrate uncertainties a multi-model particle filtering approach is employed. In general, resampling as a part of the particle filtering approach has the potential to lead to an accurate prediction. However, in the case where no future measurements are available, it may increase the uncertainty of the prediction. By estimating new measurements, those uncertainties are reduced within the data-driven part of the approach. Hence, both parts of the hybrid approach strive to account for and reduce uncertainties.\r\n\r\n \r\n\r\nRubber-metal-elements are employed as a use-case to evaluate the developed approach. Rubber-metal-elements, which are used to isolate vibrations in various systems, such as railways, trucks and wind turbines, show various uncertainties in their behavior and their degradation. Those uncertainties are caused by diverse inner and outer factors, such as manufacturing influences and operating conditions. By expert knowledge the influences are described, analyzed and if possible reduced. However, the remaining uncertainties are considered within the hybrid prediction method. Relative temperature is the selected measurand to describe the element’s degradation. In lifetime tests, it is measured as the difference between the element’s temperature and the ambient temperature. Thereby, the influence of the ambient temperature on the element’s temperature is taken into account. Those elements show three typical states of degradation that are identified within the temperature measurements. Depending on the particular state of degradation a new measurement is estimated within the hybrid approach to reduce potential uncertainties.\r\n\r\nFinally, the performance of the developed hybrid method is compared to a model-based method for estimating the remaining useful lifetime of the same elements. Suitable performance indices are implemented to underline the differences between the results." author: - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Bender A, Sextro W. Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties. In: Do P, King S, Fink Olga, eds. Proceedings of the European Conference of the PHM Society 2021. Vol 6. ; 2021. doi:https://doi.org/10.36001/phme.2021.v6i1.2843 ' apa: Bender, A., & Sextro, W. (2021). Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties. In P. Do, S. King, & Olga Fink (Eds.), Proceedings of the European Conference of the PHM Society 2021 (Vol. 6, Issue 1). https://doi.org/10.36001/phme.2021.v6i1.2843 bibtex: '@inproceedings{Bender_Sextro_2021, title={Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties}, volume={6}, DOI={https://doi.org/10.36001/phme.2021.v6i1.2843 }, number={1}, booktitle={Proceedings of the European Conference of the PHM Society 2021}, author={Bender, Amelie and Sextro, Walter}, editor={Do, Phuc and King, Steve and Fink, Olga}, year={2021} }' chicago: Bender, Amelie, and Walter Sextro. “Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties.” In Proceedings of the European Conference of the PHM Society 2021, edited by Phuc Do, Steve King, and Olga Fink, Vol. 6, 2021. https://doi.org/10.36001/phme.2021.v6i1.2843 . ieee: 'A. Bender and W. Sextro, “Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties,” in Proceedings of the European Conference of the PHM Society 2021, 2021, vol. 6, no. 1, doi: https://doi.org/10.36001/phme.2021.v6i1.2843 .' mla: Bender, Amelie, and Walter Sextro. “Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties.” Proceedings of the European Conference of the PHM Society 2021, edited by Phuc Do et al., vol. 6, no. 1, 2021, doi:https://doi.org/10.36001/phme.2021.v6i1.2843 . short: 'A. Bender, W. Sextro, in: P. Do, S. King, Olga Fink (Eds.), Proceedings of the European Conference of the PHM Society 2021, 2021.' conference: end_date: 2021-07-02 name: 6th European Conference of Prognostics and Health Management start_date: 2021-06-28 date_created: 2021-07-14T06:29:08Z date_updated: 2023-09-22T07:19:48Z department: - _id: '151' doi: 'https://doi.org/10.36001/phme.2021.v6i1.2843 ' editor: - first_name: 'Phuc ' full_name: 'Do, Phuc ' last_name: Do - first_name: Steve full_name: King, Steve last_name: King - first_name: ' Olga' full_name: Fink, Olga last_name: Fink intvolume: ' 6' issue: '1' keyword: - Hybrid prediction method - Multi-model particle filtering - Uncertainty quantification - RUL estimation language: - iso: eng main_file_link: - open_access: '1' url: https://papers.phmsociety.org/index.php/phme/article/view/2843 oa: '1' publication: Proceedings of the European Conference of the PHM Society 2021 publication_identifier: unknown: - 978-1-936263-34-9 publication_status: published quality_controlled: '1' status: public title: Hybrid Prediction Method for Remaining Useful Lifetime Estimation Considering Uncertainties type: conference user_id: '54290' volume: 6 year: '2021' ... --- _id: '22507' abstract: - lang: eng text: Several methods, including order analysis, wavelet analysis and empirical mode decomposition have been proposed and successfully employed for the health state estimation of technical systems operating under varying conditions. However, where information such as the speed of rotating machinery, component specifications or other domain-specific information is unavailable, such methods are often infeasible. Thus, this paper investigates the application of classical time-domain features, features from the medical field and novel features from the highly comparative time-series analysis (HCTSA) package, for the health state estimation of rotating machinery operating under varying conditions. Furthermore, several feature selection methods are investigated to identify features as viable health indicators for the diagnostics and prognostics of technical systems. As a case study, the presented methods are evaluated on real-world and experimentally acquired vibration data of bearings operating under varying speed. The results show that the selected features can successfully be employed as health indicators for technical systems operating under varying conditions. author: - first_name: Osarenren Kennedy full_name: Aimiyekagbon, Osarenren Kennedy id: '9557' last_name: Aimiyekagbon - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Aimiyekagbon OK, Bender A, Sextro W. On the applicability of time series features as health indicators for technical systems operating under varying conditions. In: Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021).' apa: Aimiyekagbon, O. K., Bender, A., & Sextro, W. (n.d.). On the applicability of time series features as health indicators for technical systems operating under varying conditions. Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021). Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021). bibtex: '@inproceedings{Aimiyekagbon_Bender_Sextro, title={On the applicability of time series features as health indicators for technical systems operating under varying conditions}, booktitle={Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021)}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Sextro, Walter} }' chicago: Aimiyekagbon, Osarenren Kennedy, Amelie Bender, and Walter Sextro. “On the Applicability of Time Series Features as Health Indicators for Technical Systems Operating under Varying Conditions.” In Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021), n.d. ieee: O. K. Aimiyekagbon, A. Bender, and W. Sextro, “On the applicability of time series features as health indicators for technical systems operating under varying conditions,” presented at the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021). mla: Aimiyekagbon, Osarenren Kennedy, et al. “On the Applicability of Time Series Features as Health Indicators for Technical Systems Operating under Varying Conditions.” Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021). short: 'O.K. Aimiyekagbon, A. Bender, W. Sextro, in: Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021), n.d.' conference: end_date: 2021-06-18 name: Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021) start_date: 2021-06-14 date_created: 2021-06-23T05:24:39Z date_updated: 2023-09-22T08:10:34Z ddc: - '620' department: - _id: '151' file: - access_level: open_access content_type: application/pdf creator: kennedy date_created: 2021-06-23T06:43:44Z date_updated: 2021-06-23T06:50:07Z description: 'This is a post-print version of the article presented at the Seventeenth International Con-ference on Condition Monitoring and Asset Management (CM 2021). The event websiteis available at: https://www.bindt.org/events/CM-2021/ and the abstract is available at:https://www.bindt.org/events/CM-2021/abstract-9a7/.' file_id: '22508' file_name: Aimiyekagbon_et_al_2021_On_the_applicability_of_time_series_features_as_health_indicators_postPrint.pdf file_size: 1875572 relation: main_file title: On the applicability of time series features as health indicators for technical systems operating under varying conditions file_date_updated: 2021-06-23T06:50:07Z has_accepted_license: '1' keyword: - Wind turbine diagnostics - bearing diagnostics - non-stationary operating conditions - varying operating conditions - feature extraction - feature selection - fault detection - failure detection language: - iso: eng oa: '1' publication: Proceedings of the Seventeenth International Conference on Condition Monitoring and Asset Management (CM 2021) publication_status: inpress quality_controlled: '1' status: public title: On the applicability of time series features as health indicators for technical systems operating under varying conditions type: conference user_id: '9557' year: '2021' ... --- _id: '27111' abstract: - lang: eng text: In the industry 4.0 era, there is a growing need to transform unstructured data acquired by a multitude of sources into information and subsequently into knowledge to improve the quality of manufactured products, to boost production, for predictive maintenance, etc. Data-driven approaches, such as machine learning techniques, are typically employed to model the underlying relationship from data. However, an increase in model accuracy with state-of-the-art methods, such as deep convolutional neural networks, results in less interpretability and transparency. Due to the ease of implementation, interpretation and transparency to both domain experts and non-experts, a rule-based method is proposed in this paper, for prognostics and health management (PHM) and specifically for diagnostics. The proposed method utilizes the most relevant sensor signals acquired via feature extraction and selection techniques and expert knowledge. As a case study, the presented method is evaluated on data from a real-world quality control set-up provided by the European prognostics and health management society (PHME) at the conference’s 2021 data challenge. With the proposed method, our team took the third place, capable of successfully diagnosing different fault modes, irrespective of varying conditions. author: - first_name: Osarenren Kennedy full_name: Aimiyekagbon, Osarenren Kennedy id: '9557' last_name: Aimiyekagbon - first_name: Lars full_name: Muth, Lars id: '77313' last_name: Muth orcid: 0000-0002-2938-5616 - first_name: Meike Claudia full_name: Wohlleben, Meike Claudia id: '43991' last_name: Wohlleben orcid: 0009-0009-9767-7168 - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Aimiyekagbon OK, Muth L, Wohlleben MC, Bender A, Sextro W. Rule-based Diagnostics of a Production Line. In: Do P, King S, Fink O, eds. Proceedings of the European Conference of the PHM Society 2021. Vol 6. ; 2021:527-536. doi:10.36001/phme.2021.v6i1.3042' apa: Aimiyekagbon, O. K., Muth, L., Wohlleben, M. C., Bender, A., & Sextro, W. (2021). Rule-based Diagnostics of a Production Line. In P. Do, S. King, & O. Fink (Eds.), Proceedings of the European Conference of the PHM Society 2021 (Vol. 6, Issue 1, pp. 527–536). https://doi.org/10.36001/phme.2021.v6i1.3042 bibtex: '@inproceedings{Aimiyekagbon_Muth_Wohlleben_Bender_Sextro_2021, title={Rule-based Diagnostics of a Production Line}, volume={6}, DOI={10.36001/phme.2021.v6i1.3042}, number={1}, booktitle={Proceedings of the European Conference of the PHM Society 2021}, author={Aimiyekagbon, Osarenren Kennedy and Muth, Lars and Wohlleben, Meike Claudia and Bender, Amelie and Sextro, Walter}, editor={Do, Phuc and King, Steve and Fink, Olga}, year={2021}, pages={527–536} }' chicago: Aimiyekagbon, Osarenren Kennedy, Lars Muth, Meike Claudia Wohlleben, Amelie Bender, and Walter Sextro. “Rule-Based Diagnostics of a Production Line.” In Proceedings of the European Conference of the PHM Society 2021, edited by Phuc Do, Steve King, and Olga Fink, 6:527–36, 2021. https://doi.org/10.36001/phme.2021.v6i1.3042. ieee: 'O. K. Aimiyekagbon, L. Muth, M. C. Wohlleben, A. Bender, and W. Sextro, “Rule-based Diagnostics of a Production Line,” in Proceedings of the European Conference of the PHM Society 2021, 2021, vol. 6, no. 1, pp. 527–536, doi: 10.36001/phme.2021.v6i1.3042.' mla: Aimiyekagbon, Osarenren Kennedy, et al. “Rule-Based Diagnostics of a Production Line.” Proceedings of the European Conference of the PHM Society 2021, edited by Phuc Do et al., vol. 6, no. 1, 2021, pp. 527–36, doi:10.36001/phme.2021.v6i1.3042. short: 'O.K. Aimiyekagbon, L. Muth, M.C. Wohlleben, A. Bender, W. Sextro, in: P. Do, S. King, O. Fink (Eds.), Proceedings of the European Conference of the PHM Society 2021, 2021, pp. 527–536.' conference: name: PHM Society European Conference date_created: 2021-11-03T12:26:39Z date_updated: 2023-09-22T09:13:01Z department: - _id: '151' doi: 10.36001/phme.2021.v6i1.3042 editor: - first_name: Phuc full_name: Do, Phuc last_name: Do - first_name: Steve full_name: King, Steve last_name: King - first_name: Olga full_name: Fink, Olga last_name: Fink intvolume: ' 6' issue: '1' keyword: - PHME 2021 - Feature Selection Classification - Feature Selection Clustering - Interpretable Model - Transparent Model - Industry 4.0 - Real-World Diagnostics - Quality Control - Predictive Maintenance language: - iso: eng main_file_link: - open_access: '1' url: http://papers.phmsociety.org/index.php/phme/article/download/3042/1812 oa: '1' page: 527-536 publication: Proceedings of the European Conference of the PHM Society 2021 publication_status: published quality_controlled: '1' status: public title: Rule-based Diagnostics of a Production Line type: conference user_id: '9557' volume: 6 year: '2021' ... --- _id: '29293' article_number: '100065' author: - first_name: Sven full_name: Martin, Sven id: '38177' last_name: Martin - first_name: Jan full_name: Schütte, Jan id: '22109' last_name: Schütte orcid: 0000-0001-9025-9742 - first_name: C. full_name: Bäumler, C. last_name: Bäumler - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster citation: ama: Martin S, Schütte J, Bäumler C, Sextro W, Tröster T. Identification of joints for a load-adapted shape in a body in white using steady state vehicle simulations. Forces in Mechanics. 2021;6. doi:10.1016/j.finmec.2021.100065 apa: Martin, S., Schütte, J., Bäumler, C., Sextro, W., & Tröster, T. (2021). Identification of joints for a load-adapted shape in a body in white using steady state vehicle simulations. Forces in Mechanics, 6, Article 100065. https://doi.org/10.1016/j.finmec.2021.100065 bibtex: '@article{Martin_Schütte_Bäumler_Sextro_Tröster_2021, title={Identification of joints for a load-adapted shape in a body in white using steady state vehicle simulations}, volume={6}, DOI={10.1016/j.finmec.2021.100065}, number={100065}, journal={Forces in Mechanics}, publisher={Elsevier BV}, author={Martin, Sven and Schütte, Jan and Bäumler, C. and Sextro, Walter and Tröster, Thomas}, year={2021} }' chicago: Martin, Sven, Jan Schütte, C. Bäumler, Walter Sextro, and Thomas Tröster. “Identification of Joints for a Load-Adapted Shape in a Body in White Using Steady State Vehicle Simulations.” Forces in Mechanics 6 (2021). https://doi.org/10.1016/j.finmec.2021.100065. ieee: 'S. Martin, J. Schütte, C. Bäumler, W. Sextro, and T. Tröster, “Identification of joints for a load-adapted shape in a body in white using steady state vehicle simulations,” Forces in Mechanics, vol. 6, Art. no. 100065, 2021, doi: 10.1016/j.finmec.2021.100065.' mla: Martin, Sven, et al. “Identification of Joints for a Load-Adapted Shape in a Body in White Using Steady State Vehicle Simulations.” Forces in Mechanics, vol. 6, 100065, Elsevier BV, 2021, doi:10.1016/j.finmec.2021.100065. short: S. Martin, J. Schütte, C. Bäumler, W. Sextro, T. Tröster, Forces in Mechanics 6 (2021). date_created: 2022-01-12T10:30:02Z date_updated: 2025-06-06T08:05:56Z department: - _id: '151' - _id: '630' - _id: '149' - _id: '321' - _id: '9' doi: 10.1016/j.finmec.2021.100065 intvolume: ' 6' language: - iso: eng main_file_link: - open_access: '1' url: https://www.sciencedirect.com/science/article/pii/S2666359721000561 oa: '1' project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '132' name: 'TRR 285 - B: TRR 285 - Project Area B' - _id: '140' name: 'TRR 285 – B01: TRR 285 - Subproject B01' publication: Forces in Mechanics publication_identifier: issn: - 2666-3597 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Identification of joints for a load-adapted shape in a body in white using steady state vehicle simulations type: journal_article user_id: '15952' volume: 6 year: '2021' ... --- _id: '22007' author: - first_name: Jan full_name: Schütte, Jan id: '22109' last_name: Schütte orcid: 0000-0001-9025-9742 - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Schütte J, Sextro W. Model-Based Investigation of the Influence of Wheel Suspension Characteristics on Tire Wear. In: Lecture Notes in Mechanical Engineering. ; 2020. doi:10.1007/978-3-030-38077-9_201' apa: Schütte, J., & Sextro, W. (2020). Model-Based Investigation of the Influence of Wheel Suspension Characteristics on Tire Wear. Lecture Notes in Mechanical Engineering. https://doi.org/10.1007/978-3-030-38077-9_201 bibtex: '@inproceedings{Schütte_Sextro_2020, place={Cham}, title={Model-Based Investigation of the Influence of Wheel Suspension Characteristics on Tire Wear}, DOI={10.1007/978-3-030-38077-9_201}, booktitle={Lecture Notes in Mechanical Engineering}, author={Schütte, Jan and Sextro, Walter}, year={2020} }' chicago: Schütte, Jan, and Walter Sextro. “Model-Based Investigation of the Influence of Wheel Suspension Characteristics on Tire Wear.” In Lecture Notes in Mechanical Engineering. Cham, 2020. https://doi.org/10.1007/978-3-030-38077-9_201. ieee: 'J. Schütte and W. Sextro, “Model-Based Investigation of the Influence of Wheel Suspension Characteristics on Tire Wear,” 2020, doi: 10.1007/978-3-030-38077-9_201.' mla: Schütte, Jan, and Walter Sextro. “Model-Based Investigation of the Influence of Wheel Suspension Characteristics on Tire Wear.” Lecture Notes in Mechanical Engineering, 2020, doi:10.1007/978-3-030-38077-9_201. short: 'J. Schütte, W. Sextro, in: Lecture Notes in Mechanical Engineering, Cham, 2020.' date_created: 2021-05-06T09:09:37Z date_updated: 2024-05-27T07:48:56Z department: - _id: '151' doi: 10.1007/978-3-030-38077-9_201 language: - iso: eng place: Cham publication: Lecture Notes in Mechanical Engineering publication_identifier: isbn: - '9783030380762' - '9783030380779' issn: - 2195-4356 - 2195-4364 publication_status: published quality_controlled: '1' status: public title: Model-Based Investigation of the Influence of Wheel Suspension Characteristics on Tire Wear type: conference user_id: '22109' year: '2020' ... --- _id: '17355' abstract: - lang: eng text: Ultrasonic wire bonding is a process to form electrical connections in electronics well established industry. Typically, a clamping tool is pressed on the wire and forced to vibrate at relative high frequency 40 to 100 kHz. The ultrasonic vibration is transmitted through the wire into the interface between wire and substrate. Due to frictional processes, contamination like oxide layers are removed from the contact zone, the surface roughness is reduced, and with increasing bond duration an metallic connection of wire and substrate is established. It is known that the amount of ultrasonic energy over time directly influences the strength and reliability of the bond connection, but the determination of optimum bond parameters is still a challenging experimental task. For this, in the past different model approaches have been presented, to calculate the bond quality by simulation. Measuring the friction between wire and substrate to validate these models is a challenging task at ultrasonic bonding frequency. Therefore a versatile test rig for bonding experiments at frequencies lower than 1 kHz is setup to get detailed insight into the different phases of the connection process. It includes a piezoelectric force sensor for the measurement of the three-dimensional process forces, an electrodynamic shaker for the vibration excitation and a conventional tension-compression testing machine to apply the bond normal force. Using this test rig, it is possible to observe the different phases of bond formation in detail, validate and enhance existing models and finally optimize bond parameters for different processes. author: - first_name: Reinhard full_name: Schemmel, Reinhard id: '28647' last_name: Schemmel - first_name: Claus full_name: Scheidemann, Claus id: '38259' last_name: Scheidemann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: 'Olaf ' full_name: 'Kirsch, Olaf ' last_name: Kirsch - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Schemmel R, Scheidemann C, Hemsel T, Kirsch O, Sextro W. Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding. In: CIPS 2020; 11th International Conference on Integrated Power Electronics Systems. ; 2020:1-6.' apa: Schemmel, R., Scheidemann, C., Hemsel, T., Kirsch, O., & Sextro, W. (2020). Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding. CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 1–6. bibtex: '@inproceedings{Schemmel_Scheidemann_Hemsel_Kirsch_Sextro_2020, title={Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding}, booktitle={CIPS 2020; 11th International Conference on Integrated Power Electronics Systems}, author={Schemmel, Reinhard and Scheidemann, Claus and Hemsel, Tobias and Kirsch, Olaf and Sextro, Walter}, year={2020}, pages={1–6} }' chicago: Schemmel, Reinhard, Claus Scheidemann, Tobias Hemsel, Olaf Kirsch, and Walter Sextro. “Experimental Analysis and Modelling of Bond Formation in Ultrasonic Heavy Wire Bonding.” In CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 1–6, 2020. ieee: R. Schemmel, C. Scheidemann, T. Hemsel, O. Kirsch, and W. Sextro, “Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding,” in CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 2020, pp. 1–6. mla: Schemmel, Reinhard, et al. “Experimental Analysis and Modelling of Bond Formation in Ultrasonic Heavy Wire Bonding.” CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 2020, pp. 1–6. short: 'R. Schemmel, C. Scheidemann, T. Hemsel, O. Kirsch, W. Sextro, in: CIPS 2020; 11th International Conference on Integrated Power Electronics Systems, 2020, pp. 1–6.' date_created: 2020-07-06T07:41:21Z date_updated: 2023-09-21T14:27:32Z department: - _id: '151' language: - iso: eng page: 1-6 publication: CIPS 2020; 11th International Conference on Integrated Power Electronics Systems quality_controlled: '1' status: public title: Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding type: conference user_id: '210' year: '2020' ... --- _id: '9857' abstract: - lang: eng text: Schwingungsprobleme in der Technik analysieren, verstehen und beschreiben Schwingungen treten als nützliche oder auch als störende Erscheinungen fast überall in Natur und Technik auf. Deshalb ist es wichtig, sie zu verstehen, zu deuten oder auch in gewünschter Weise zu beeinflussen. Dieses Lehrbuch gibt eine Einführung in die physikalischen Grundlagen und die mathematische Behandlung von Schwingungen. In der aktuellen Auflage wurden der Text und die Bilder überarbeitet sowie konstruktive Hinweise von Fachkollegen berücksichtigt. Der Inhalt Grundbegriffe und Darstellungsmittel - Freie Schwingungen - Selbsterregte Schwingungen - Parametererregte Schwingungen - Erzwungene Schwingungen - Koppelschwingungen - Kontinuumsschwingungen - Chaotische Bewegungen - Aufgaben und Ergebnisse Die Zielgruppe Studierende der Ingenieurwissenschaften, der Physik und der Mathematik, berufstätige Ingenieure author: - first_name: Kurt full_name: Magnus, Kurt last_name: Magnus - first_name: Karl full_name: Popp, Karl last_name: Popp - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: Magnus K, Popp K, Sextro W. Schwingungen. Springer Vieweg Wiesbaden; 2020. doi:10.1007/978-3-658-31116-2 apa: Magnus, K., Popp, K., & Sextro, W. (2020). Schwingungen. Springer Vieweg Wiesbaden. https://doi.org/10.1007/978-3-658-31116-2 bibtex: '@book{Magnus_Popp_Sextro_2020, title={Schwingungen}, DOI={10.1007/978-3-658-31116-2}, publisher={Springer Vieweg Wiesbaden}, author={Magnus, Kurt and Popp, Karl and Sextro, Walter}, year={2020} }' chicago: Magnus, Kurt, Karl Popp, and Walter Sextro. Schwingungen. Springer Vieweg Wiesbaden, 2020. https://doi.org/10.1007/978-3-658-31116-2. ieee: K. Magnus, K. Popp, and W. Sextro, Schwingungen. Springer Vieweg Wiesbaden, 2020. mla: Magnus, Kurt, et al. Schwingungen. Springer Vieweg Wiesbaden, 2020, doi:10.1007/978-3-658-31116-2. short: K. Magnus, K. Popp, W. Sextro, Schwingungen, Springer Vieweg Wiesbaden, 2020. date_created: 2019-05-20T11:06:33Z date_updated: 2023-09-21T14:02:49Z department: - _id: '151' doi: 10.1007/978-3-658-31116-2 language: - iso: ger page: '285' publication_identifier: eisbn: - 978-3-658-31116-2 isbn: - 978-3-658-31115-5 publication_status: published publisher: Springer Vieweg Wiesbaden status: public title: Schwingungen type: book user_id: '210' year: '2020' ... --- _id: '17706' author: - first_name: Reinhard full_name: Schemmel, Reinhard id: '28647' last_name: Schemmel - first_name: Viktor full_name: Krieger, Viktor last_name: Krieger - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Schemmel R, Krieger V, Hemsel T, Sextro W. Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. In: 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). ; 2020. doi:10.1109/eurosime48426.2020.9152679' apa: Schemmel, R., Krieger, V., Hemsel, T., & Sextro, W. (2020). Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). https://doi.org/10.1109/eurosime48426.2020.9152679 bibtex: '@inproceedings{Schemmel_Krieger_Hemsel_Sextro_2020, title={Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization}, DOI={10.1109/eurosime48426.2020.9152679}, booktitle={2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE)}, author={Schemmel, Reinhard and Krieger, Viktor and Hemsel, Tobias and Sextro, Walter}, year={2020} }' chicago: Schemmel, Reinhard, Viktor Krieger, Tobias Hemsel, and Walter Sextro. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” In 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2020. https://doi.org/10.1109/eurosime48426.2020.9152679. ieee: 'R. Schemmel, V. Krieger, T. Hemsel, and W. Sextro, “Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization,” 2020, doi: 10.1109/eurosime48426.2020.9152679.' mla: Schemmel, Reinhard, et al. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2020, doi:10.1109/eurosime48426.2020.9152679. short: 'R. Schemmel, V. Krieger, T. Hemsel, W. Sextro, in: 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE), 2020.' date_created: 2020-08-07T09:49:17Z date_updated: 2023-09-21T14:16:41Z department: - _id: '151' doi: 10.1109/eurosime48426.2020.9152679 language: - iso: eng publication: 2020 21st International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE) publication_identifier: isbn: - '9781728160498' publication_status: published status: public title: Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization type: conference user_id: '210' year: '2020' ... --- _id: '17810' abstract: - lang: eng text: In all fields, the significance of a reliable and accurate predictive model is almost unquantifiable. With deep domain knowledge, models derived from first principles typically outperforms other models in terms of reliability and accuracy. When it may become a cumbersome or an unachievable task to build or validate such models of complex (non-linear) systems, machine learning techniques are employed to build predictive models. However, the accuracy of such techniques is not only dependent on the hyper-parameters of the chosen algorithm, but also on the amount and quality of data. This paper investigates the application of classical time series forecasting approaches for the reliable prognostics of technical systems, where black box machine learning techniques might not successfully be employed given insufficient amount of data and where first principles models are infeasible due to lack of domain specific data. Forecasting by analogy, forecasting by analytical function fitting, an exponential smoothing forecasting method and the long short-term memory (LSTM) are evaluated and compared against the ground truth data. As a case study, the methods are applied to predict future crack lengths of riveted aluminium plates under cyclic loading. The performance of the predictive models is evaluated based on error metrics leading to a proposal of when to apply which forecasting approach. author: - first_name: Osarenren Kennedy full_name: Aimiyekagbon, Osarenren Kennedy id: '9557' last_name: Aimiyekagbon - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Aimiyekagbon OK, Bender A, Sextro W. Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data. In: PHM Society European Conference. Vol 5. ; 2020.' apa: Aimiyekagbon, O. K., Bender, A., & Sextro, W. (2020). Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data. PHM Society European Conference, 5(1). bibtex: '@inproceedings{Aimiyekagbon_Bender_Sextro_2020, title={Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data}, volume={5}, number={1}, booktitle={PHM Society European Conference}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Sextro, Walter}, year={2020} }' chicago: Aimiyekagbon, Osarenren Kennedy, Amelie Bender, and Walter Sextro. “Evaluation of Time Series Forecasting Approaches for the Reliable Crack Length Prediction of Riveted Aluminium Plates given Insufficient Data.” In PHM Society European Conference, Vol. 5, 2020. ieee: O. K. Aimiyekagbon, A. Bender, and W. Sextro, “Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data,” in PHM Society European Conference, 2020, vol. 5, no. 1. mla: Aimiyekagbon, Osarenren Kennedy, et al. “Evaluation of Time Series Forecasting Approaches for the Reliable Crack Length Prediction of Riveted Aluminium Plates given Insufficient Data.” PHM Society European Conference, vol. 5, no. 1, 2020. short: 'O.K. Aimiyekagbon, A. Bender, W. Sextro, in: PHM Society European Conference, 2020.' date_created: 2020-08-11T13:32:40Z date_updated: 2023-09-22T09:13:16Z department: - _id: '151' intvolume: ' 5' issue: '1' keyword: - PHM 2019 - crack propagation - forecasting - unevenly spaced time series - step ahead prediction - short time series language: - iso: eng publication: PHM Society European Conference quality_controlled: '1' status: public title: Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data type: conference user_id: '9557' volume: 5 year: '2020' ... --- _id: '9981' abstract: - lang: ger text: Die Erfindung betrifft ein Gerät mit wenigstens einem elastisch verformbaren Bauteil als Strukturteil und/oder Lagerteil, auf das im Betriebsverlauf von wechselnden Betriebszuständen abhängige, unterschiedliche Verformungskräfte einwirken, die zu einem die Bauteilnutzungsdauer begrenzenden Bauteilverschleiß führen, und mit einer Einrichtung zur Bestimmung der Bauteilnutzungsdauer und einer verschleißbedingten Bauteil-Restnutzungsdauer. Erfindungsgemäß wird ein sich zeitversetzt wiederholender, jeweils gleicher Betriebszustand vorbestimmt, dem eine jeweils gleiche Verformungskraft zugeordnet ist, durch die das elastisch verformbare Bauteilmaterial verformt wird. Ein solcher vorbestimmter Betriebszustand wird jeweils von einer Mess- und Auswerteeinheit erkannt und ein Messvorgang durch ein Startsignal selbsttätig gestartet, wobei mit wenigstens einem bauteilzugeordneten Beschleunigungssensor, die aktuelle Beschleunigung der Verformung oder daraus abgeleitete Kennwerte als Kenngröße für eine aktuelle Bauteilsteifigkeit gemessen und jeweils in einer Messkurve gespeichert und verglichen wird. application_date: 01.02.2018 application_number: '18154730.8' author: - first_name: Kai full_name: Reinke, Kai last_name: Reinke - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Tobias full_name: Meyer, Tobias last_name: Meyer - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: James Kuria full_name: Kimotho, James Kuria last_name: Kimotho citation: ama: 'Reinke K, Bender A, Meyer T, Sextro W, Kimotho JK. Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts. Published online 2020.' apa: 'Reinke, K., Bender, A., Meyer, T., Sextro, W., & Kimotho, J. K. (2020). Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.' bibtex: '@article{Reinke_Bender_Meyer_Sextro_Kimotho_2020, title={Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.}, author={Reinke, Kai and Bender, Amelie and Meyer, Tobias and Sextro, Walter and Kimotho, James Kuria}, year={2020} }' chicago: 'Reinke, Kai, Amelie Bender, Tobias Meyer, Walter Sextro, and James Kuria Kimotho. “Patent EP 3 358 332 B1: Verfahren Zur Bestimmung Des Beginns Einer Verschleißbedingten Bauteil-Restnutzungsdauer Eines Elastisch Verformbaren Bauteils, Als Strukturteil Und/Oder Lagerteil Eines Geräts.,” 2020.' ieee: 'K. Reinke, A. Bender, T. Meyer, W. Sextro, and J. K. Kimotho, “Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.” 2020.' mla: 'Reinke, Kai, et al. Patent EP 3 358 332 B1: Verfahren Zur Bestimmung Des Beginns Einer Verschleißbedingten Bauteil-Restnutzungsdauer Eines Elastisch Verformbaren Bauteils, Als Strukturteil Und/Oder Lagerteil Eines Geräts. 2020.' short: K. Reinke, A. Bender, T. Meyer, W. Sextro, J.K. Kimotho, (2020). date_created: 2019-05-27T09:46:54Z date_updated: 2023-09-28T09:49:19Z ddc: - '620' department: - _id: '151' file: - access_level: closed content_type: application/pdf creator: ekubi date_created: 2022-09-07T05:17:34Z date_updated: 2022-09-07T05:17:34Z file_id: '33277' file_name: EP000003358332B1_1.pdf file_size: 115020 relation: main_file success: 1 file_date_updated: 2022-09-07T05:17:34Z has_accepted_license: '1' ipc: G01M 13/00 ipn: EP 3 358 332 B1 page: '1' publication_date: 15.07.2020 status: public title: 'Patent EP 3 358 332 B1: Verfahren zur Bestimmung des Beginns einer verschleißbedingten Bauteil-Restnutzungsdauer eines elastisch verformbaren Bauteils, als Strukturteil und/oder Lagerteil eines Geräts.' type: patent user_id: '210' year: '2020' ... --- _id: '23716' abstract: - lang: eng text: In der Entwicklung mechatronischer Systeme spielt die Steigerung der Verlässlichkeit und somit auch der Zuverlässigkeit und der funktionalen Sicherheit eine entscheidende Rolle. Die modellbasierte Entwicklung liefert in Kombination mit unterstützender Software einen wichtigen Beitrag zur Absicherung der Verlässlichkeit mechatronischer Systeme in frühen Entwicklungsphasen. In der Nutzungsphase ermöglichen aktuelle Verfahren der Zustandsüberwachung und moderne Methoden der Regelungstechnik eine effektive Absicherung. Modelle aus der Entwicklung mechatronischer Systeme enthalten weitreichende Informationen über die Architektur, das Verhalten und die Verlässlichkeit eines Systems. Diese Modelle können als Grundlage für die Erstellung eines Digitalen Zwillings für die vorausschauende Instandhaltung verwendet und mit Zustandsdaten des realen Systems kombiniert werden. Die Nutzung der Modelle für den Digitalen Zwilling bietet weitreichende Potenziale und vereinfacht dessen Erzeugung. Die Veröffentlichung beschreibt Rahmenbedingungen der Integration und stellt die Potenziale des Digitalen Zwillings zur vorausschauenden Instandhaltung dar. author: - first_name: Thorben full_name: Kaul, Thorben id: '14802' last_name: Kaul - first_name: Julian full_name: Hentze, Julian id: '13342' last_name: Hentze - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Iris full_name: Gräßler, Iris id: '47565' last_name: Gräßler orcid: 0000-0001-5765-971X citation: ama: 'Kaul T, Hentze J, Sextro W, Gräßler I. Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In: Bertram T, Corves B, Gräßler I, Janschek K, eds. Fachtagung Mechatronik 2019 Paderborn. ; 2019:19-24.' apa: Kaul, T., Hentze, J., Sextro, W., & Gräßler, I. (2019). Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In T. Bertram, B. Corves, I. Gräßler, & K. Janschek (Eds.), Fachtagung Mechatronik 2019 Paderborn (pp. 19–24). bibtex: '@inproceedings{Kaul_Hentze_Sextro_Gräßler_2019, title={Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung}, booktitle={Fachtagung Mechatronik 2019 Paderborn}, author={Kaul, Thorben and Hentze, Julian and Sextro, Walter and Gräßler, Iris}, editor={Bertram, Torsten and Corves, Burkhard and Gräßler, Iris and Janschek, KlausEditors}, year={2019}, pages={19–24} }' chicago: Kaul, Thorben, Julian Hentze, Walter Sextro, and Iris Gräßler. “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung.” In Fachtagung Mechatronik 2019 Paderborn, edited by Torsten Bertram, Burkhard Corves, Iris Gräßler, and Klaus Janschek, 19–24, 2019. ieee: T. Kaul, J. Hentze, W. Sextro, and I. Gräßler, “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung,” in Fachtagung Mechatronik 2019 Paderborn, 2019, pp. 19–24. mla: Kaul, Thorben, et al. “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung.” Fachtagung Mechatronik 2019 Paderborn, edited by Torsten Bertram et al., 2019, pp. 19–24. short: 'T. Kaul, J. Hentze, W. Sextro, I. Gräßler, in: T. Bertram, B. Corves, I. Gräßler, K. Janschek (Eds.), Fachtagung Mechatronik 2019 Paderborn, 2019, pp. 19–24.' conference: end_date: 2019-03-28 start_date: 2019-03-27 date_created: 2021-09-03T05:58:32Z date_updated: 2022-01-06T06:55:58Z department: - _id: '152' editor: - first_name: Torsten full_name: Bertram, Torsten last_name: Bertram - first_name: Burkhard full_name: Corves, Burkhard last_name: Corves - first_name: Iris full_name: Gräßler, Iris last_name: Gräßler - first_name: Klaus full_name: Janschek, Klaus last_name: Janschek language: - iso: ger page: 19-24 publication: Fachtagung Mechatronik 2019 Paderborn status: public title: Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung type: conference user_id: '21240' year: '2019' ... --- _id: '14852' abstract: - lang: eng text: In a variety of industrial applications, liquids are atomized to produce aerosols for further processing. Example applications are the coating of surfaces with paints, the application of ultra-thin adhesive layers and the atomization of fuels for the production of combustible dispersions. In this publication different atomizing principles (standing-wave, capillary-wave, vibrating-mesh) are examined and discussed. Using an optimized standing-wave system, tough liquids with viscosities of up to about 100 Pas could be successfully atomized. author: - first_name: Paul full_name: Dunst, Paul id: '22130' last_name: Dunst - first_name: Peter full_name: Bornmann, Peter last_name: Bornmann - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: 'Walter ' full_name: 'Littmann, Walter ' last_name: Littmann - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Dunst P, Bornmann P, Hemsel T, Littmann W, Sextro W. Atomization of Fluids with Ultrasound. In: Lötters J, Urban G, eds. Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019). Enschede, The Netherlands; 2019:140-143.' apa: Dunst, P., Bornmann, P., Hemsel, T., Littmann, W., & Sextro, W. (2019). Atomization of Fluids with Ultrasound. In J. Lötters & G. Urban (Eds.), Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019) (pp. 140–143). Enschede, The Netherlands. bibtex: '@inproceedings{Dunst_Bornmann_Hemsel_Littmann_Sextro_2019, place={Enschede, The Netherlands}, title={Atomization of Fluids with Ultrasound}, booktitle={Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019)}, author={Dunst, Paul and Bornmann, Peter and Hemsel, Tobias and Littmann, Walter and Sextro, Walter}, editor={Lötters, Joost and Urban, GeraldEditors}, year={2019}, pages={140–143} }' chicago: Dunst, Paul, Peter Bornmann, Tobias Hemsel, Walter Littmann, and Walter Sextro. “Atomization of Fluids with Ultrasound.” In Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), edited by Joost Lötters and Gerald Urban, 140–43. Enschede, The Netherlands, 2019. ieee: P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, and W. Sextro, “Atomization of Fluids with Ultrasound,” in Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), Enschede, The Netherlands, 2019, pp. 140–143. mla: Dunst, Paul, et al. “Atomization of Fluids with Ultrasound.” Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), edited by Joost Lötters and Gerald Urban, 2019, pp. 140–43. short: 'P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, W. Sextro, in: J. Lötters, G. Urban (Eds.), Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), Enschede, The Netherlands, 2019, pp. 140–143.' conference: end_date: 2019-10-04 location: Enschede, The Netherlands name: 4th Conference on MicroFluidic Handling Systems start_date: 2019-10-02 date_created: 2019-11-07T15:25:30Z date_updated: 2022-01-06T06:52:08Z ddc: - '620' department: - _id: '151' editor: - first_name: Joost full_name: Lötters, Joost last_name: Lötters - first_name: Gerald full_name: Urban, Gerald last_name: Urban file: - access_level: closed content_type: application/pdf creator: pdunst date_created: 2019-11-07T15:22:56Z date_updated: 2019-11-07T15:22:56Z file_id: '14853' file_name: Dunst_MFHS_2019.pdf file_size: 3850591 relation: main_file success: 1 file_date_updated: 2019-11-07T15:22:56Z has_accepted_license: '1' keyword: - atomization - ultrasound - standing-wave - capillarywave - vibrating-mesh language: - iso: eng page: 140-143 place: Enschede, The Netherlands publication: Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019) publication_status: published quality_controlled: '1' status: public title: Atomization of Fluids with Ultrasound type: conference user_id: '22130' year: '2019' ... --- _id: '15244' author: - first_name: Oliver Ernst Caspar full_name: Hagedorn, Oliver Ernst Caspar id: '53321' last_name: Hagedorn - first_name: Daniel full_name: Pielsticker, Daniel id: '76966' last_name: Pielsticker - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Hagedorn OEC, Pielsticker D, Hemsel T, Sextro W. Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen. In: 2. VDI-Fachtagung Schwingungen 2019. VDI Verlag GmbH · Düsseldorf 2019; 2019.' apa: Hagedorn, O. E. C., Pielsticker, D., Hemsel, T., & Sextro, W. (2019). Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen. In 2. VDI-Fachtagung Schwingungen 2019. VDI Verlag GmbH · Düsseldorf 2019. bibtex: '@inproceedings{Hagedorn_Pielsticker_Hemsel_Sextro_2019, title={Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen}, booktitle={2. VDI-Fachtagung Schwingungen 2019}, publisher={VDI Verlag GmbH · Düsseldorf 2019}, author={Hagedorn, Oliver Ernst Caspar and Pielsticker, Daniel and Hemsel, Tobias and Sextro, Walter}, year={2019} }' chicago: Hagedorn, Oliver Ernst Caspar, Daniel Pielsticker, Tobias Hemsel, and Walter Sextro. “Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen.” In 2. VDI-Fachtagung Schwingungen 2019. VDI Verlag GmbH · Düsseldorf 2019, 2019. ieee: O. E. C. Hagedorn, D. Pielsticker, T. Hemsel, and W. Sextro, “Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen,” in 2. VDI-Fachtagung Schwingungen 2019, 2019. mla: Hagedorn, Oliver Ernst Caspar, et al. “Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen.” 2. VDI-Fachtagung Schwingungen 2019, VDI Verlag GmbH · Düsseldorf 2019, 2019. short: 'O.E.C. Hagedorn, D. Pielsticker, T. Hemsel, W. Sextro, in: 2. VDI-Fachtagung Schwingungen 2019, VDI Verlag GmbH · Düsseldorf 2019, 2019.' date_created: 2019-12-04T11:59:52Z date_updated: 2022-01-06T06:52:19Z department: - _id: '151' language: - iso: ger publication: 2. VDI-Fachtagung Schwingungen 2019 publication_identifier: isbn: - 978-3-18-092366-6 publisher: VDI Verlag GmbH · Düsseldorf 2019 status: public title: Messung hochfrequenter In-Plane-Schwingungen mittels Laservibrometrie in räumlich eingeschränkten Umgebungen type: conference user_id: '53321' year: '2019' ... --- _id: '10002' abstract: - lang: ger text: Dieses Buch beschreibt basierend auf dem gleichnamigen Innovationsprojekt im Spitzencluster it’s OWL die Entwicklung intelligenter Verfahren und Systeme, um auch unter variablen Produktionsbedingungen eine zuverlässige Massenfertigung von Kupferbondverbindungen sicherzustellen.Dabei wird der gesamte Prozess der Ultraschall-Verbindungsbildung modelliert. Dies beinhaltet u. a. ein Reibmodell mit gekoppeltem Anbindungsmodell, den Ultraschall-Erweichungseffekt und den Verschleiß des Bondwerkzeugs. Zudem wird das Konzept einer selbstoptimierenden Bondmaschine vorgestellt, welche Prozessparameter in Abhängigkeit von Störgrößen wie Verschleiß anpasst.Das Ultraschallbonden mit Aluminiumdraht ist ein etabliertes Fertigungsverfahren zur Kontaktierung von Leistungshalbleitern. Zukünftige Leistungshalbleiterchips erfordern jedoch einen Technologiewechsel zu Kupferdraht. Die Prozessparameter unterscheiden sich dabei deutlich von den bekannten Aluminiumprozessen, ihre Wechselwirkungen sind weitestgehend unbekannt. author: - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Michael full_name: Brökelmann, Michael last_name: Brökelmann citation: ama: Sextro W, Brökelmann M. Intelligente Herstellung Zuverlässiger Kupferbondverbindungen. Vol VIII. Springer Verlag; 2019. doi:10.1007/978-3-662-55146-2 apa: Sextro, W., & Brökelmann, M. (2019). Intelligente Herstellung zuverlässiger Kupferbondverbindungen (Vol. VIII). Springer Verlag. https://doi.org/10.1007/978-3-662-55146-2 bibtex: '@book{Sextro_Brökelmann_2019, title={Intelligente Herstellung zuverlässiger Kupferbondverbindungen}, volume={VIII}, DOI={10.1007/978-3-662-55146-2}, publisher={Springer Verlag}, author={Sextro, Walter and Brökelmann, Michael}, year={2019} }' chicago: Sextro, Walter, and Michael Brökelmann. Intelligente Herstellung Zuverlässiger Kupferbondverbindungen. Vol. VIII. Springer Verlag, 2019. https://doi.org/10.1007/978-3-662-55146-2. ieee: W. Sextro and M. Brökelmann, Intelligente Herstellung zuverlässiger Kupferbondverbindungen, vol. VIII. Springer Verlag, 2019. mla: Sextro, Walter, and Michael Brökelmann. Intelligente Herstellung Zuverlässiger Kupferbondverbindungen. Vol. VIII, Springer Verlag, 2019, doi:10.1007/978-3-662-55146-2. short: W. Sextro, M. Brökelmann, Intelligente Herstellung Zuverlässiger Kupferbondverbindungen, Springer Verlag, 2019. date_created: 2019-05-27T10:31:35Z date_updated: 2022-01-06T06:50:22Z department: - _id: '151' doi: 10.1007/978-3-662-55146-2 keyword: - Abschlussbericht zum Spitzenclusterprojekt InCuB language: - iso: eng page: '67' publisher: Springer Verlag status: public title: Intelligente Herstellung zuverlässiger Kupferbondverbindungen type: book user_id: '55222' volume: VIII year: '2019' ... --- _id: '10255' abstract: - lang: eng text: Gummi-Metall-Teile (GM-Teile) werden zur Schwingungsreduktion u. a. in Windenergieanlagen eingesetzt. Mögliche Anwendungen der Teile liegen in Wellen-, Generator- und Getriebelagerungen, Lagern für die Gondel und ihre Komponenten sowie in Drehmomentstützen. Mit dem Ziel eine prädiktive Instandhaltung zu realisieren, soll eine Zustandsüberwachung für die GM-Teile entwickelt werden. Diese Entwicklung basiert auf der Umsetzung diverser Schritte. Neben der funktionalen Betrachtung wird zwingend auch die konstruktive Integration der Sensoren in das überwachte Teil berücksichtigt. Der Schwerpunkt dieser Arbeit liegt auf der verwendeten Messgröße Temperatur, die mittels ausgewählter Sensorik detektiert wird. Dabei werden Lebensdauerversuche unter instationären Betriebsbedingungen durchgeführt, um diese Messdaten zu generieren. In der Datenauswertung werden sie hinsichtlich der Degradierung des GM-Teils analysiert und für die Ermittlung der nutzbaren Restlebensdauer verwendet. Rubber-metal-elements are used for isolation of vibrations e. g. in wind turbines. Possible applications of the elements are shaft bearings, generator bearings, gearbox bearings, bearings for the nacelle and its components and torque supports. In order to realize predictive maintenance, an accurate condition monitoring system for rubber-metal-elements should be developed. During that development different aspects have to be implemented. Additionally to the functional analysis, the constructive integration of the sensors into the monitored part is mandatory. The focus of this work is on the measured variable temperature, which is detected by means of appropriate sensors. Thereby lifetime tests are run under non-stationary operating conditions to generate temperature measurements. During data analysis, the measured data is analyzed regarding the degradation of the rubber-metal-elements and remaining useful lifetimes are estimated. author: - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Kai full_name: Reinke, Kai last_name: Reinke - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Bender A, Reinke K, Sextro W. Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement. In: 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019. Vol VDI-Berichte 2346. Bremen 2019; 2019:241-248.' apa: Bender, A., Reinke, K., & Sextro, W. (2019). Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement. In 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019 (Vol. VDI-Berichte 2346, pp. 241–248). Bremen 2019. bibtex: '@inproceedings{Bender_Reinke_Sextro_2019, place={Bremen 2019}, title={Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement}, volume={VDI-Berichte 2346}, booktitle={10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019}, author={Bender, Amelie and Reinke, Kai and Sextro, Walter}, year={2019}, pages={241–248} }' chicago: Bender, Amelie, Kai Reinke, and Walter Sextro. “Konstruktion Und Zustandsüberwachung Eines Gummi-Metall-Teils Mit Integriertem Thermoelement.” In 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, VDI-Berichte 2346:241–48. Bremen 2019, 2019. ieee: A. Bender, K. Reinke, and W. Sextro, “Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement,” in 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, 2019, vol. VDI-Berichte 2346, pp. 241–248. mla: Bender, Amelie, et al. “Konstruktion Und Zustandsüberwachung Eines Gummi-Metall-Teils Mit Integriertem Thermoelement.” 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, vol. VDI-Berichte 2346, 2019, pp. 241–48. short: 'A. Bender, K. Reinke, W. Sextro, in: 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019, Bremen 2019, 2019, pp. 241–248.' date_created: 2019-06-17T09:36:23Z date_updated: 2022-01-06T06:50:33Z department: - _id: '151' language: - iso: eng page: 241-248 place: Bremen 2019 publication: 10. VDI-Fachtagung Schwingungen von Windenergieanlagen 2019 status: public title: Konstruktion und Zustandsüberwachung eines Gummi-Metall-Teils mit integriertem Thermoelement type: conference user_id: '55222' volume: VDI-Berichte 2346 year: '2019' ... --- _id: '10257' abstract: - lang: eng text: In der Entwicklung mechatronischer Systeme spielt die Steigerung der Verlässlichkeit und somit auch der Zuverlässigkeit und der funktionalen Sicherheit eine entscheidende Rolle. Die modellbasierte Entwicklung liefert in Kombination mit unterstützender Software einen wichtigen Beitrag zur Absicherung der Verlässlichkeit mechatronischer Systeme in frühen Entwicklungsphasen. In der Nutzungsphase ermöglichen aktuelle Verfahren der Zustandsüberwachung und moderne Methoden der Regelungstechnik eine effektive Absicherung. Modelle aus der Entwicklung mechatronischer Systeme enthalten weitreichende Informationen über die Architektur, das Verhalten und die Verlässlichkeit eines Systems. Diese Modelle können als Grundlage für die Erstellung eines Digitalen Zwillings für die vorausschauende Instandhaltung verwendet und mit Zustandsdaten des realen Systems kombiniert werden. Die Nutzung der Modelle für den Digitalen Zwilling bietet weitreichende Potenziale und vereinfacht dessen Erzeugung. Die Veröffentlichung beschreibt Rahmenbedingungen der Integration und stellt die Potenziale des Digitalen Zwillings zur vorausschauenden Instandhaltung dar. author: - first_name: Thorben full_name: Kaul, Thorben id: '14802' last_name: Kaul - first_name: Julian full_name: Hentze, Julian id: '13342' last_name: Hentze - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Iris full_name: Gräßler, Iris last_name: Gräßler citation: ama: 'Kaul T, Hentze J, Sextro W, Gräßler I. Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In: Fachtagung Mechatronik 2019 Paderborn. ; 2019.' apa: Kaul, T., Hentze, J., Sextro, W., & Gräßler, I. (2019). Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung. In Fachtagung Mechatronik 2019 Paderborn. bibtex: '@inproceedings{Kaul_Hentze_Sextro_Gräßler_2019, title={Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung}, booktitle={Fachtagung Mechatronik 2019 Paderborn}, author={Kaul, Thorben and Hentze, Julian and Sextro, Walter and Gräßler, Iris}, year={2019} }' chicago: Kaul, Thorben, Julian Hentze, Walter Sextro, and Iris Gräßler. “Integration von Verlässlichkeitsmodellen Der Entwicklung in Einen Digitalen Zwilling Zur Umsetzung Einer Vorausschauenden Instandhaltung.” In Fachtagung Mechatronik 2019 Paderborn, 2019. ieee: T. Kaul, J. Hentze, W. Sextro, and I. Gräßler, “Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung,” in Fachtagung Mechatronik 2019 Paderborn, 2019. mla: Kaul, Thorben, et al. “Integration von Verlässlichkeitsmodellen Der Entwicklung in Einen Digitalen Zwilling Zur Umsetzung Einer Vorausschauenden Instandhaltung.” Fachtagung Mechatronik 2019 Paderborn, 2019. short: 'T. Kaul, J. Hentze, W. Sextro, I. Gräßler, in: Fachtagung Mechatronik 2019 Paderborn, 2019.' date_created: 2019-06-17T12:43:10Z date_updated: 2022-01-06T06:50:33Z department: - _id: '151' language: - iso: eng publication: Fachtagung Mechatronik 2019 Paderborn status: public title: Integration von Verlässlichkeitsmodellen der Entwicklung in einen Digitalen Zwilling zur Umsetzung einer vorausschauenden Instandhaltung type: conference user_id: '55222' year: '2019' ... --- _id: '10258' abstract: - lang: eng text: Für die Zerstäubung hochviskoser Flüssigkeiten werden neben Düsenzerstäubern vor allem UltraschallStehwellenzerstäuber angewendet [1]. Diese ermöglichen ohne weitere Maßnahmen zwar keine gerichtete Zerstäubung, benötigen jedoch im Gegensatz zu Düsenzerstäubern keine hohen Drücke und haben keine hohen Austrittsgeschwindigkeiten. Zur Erzeugung der Ultraschallwellen werden typischerweise piezoelektrische, mit Bolzen verschraubte LangevinWandler verwendet [1-4], die eine starke Schallabstrahlung bei einer elektrischen Eingangsleistung von bis zu einigen Kilowatt erzeugen können. Wie bei jedem anderen schwingenden System emittiert der Ultraschallwandler zunächst eine Wanderwelle. Mit einem Reflektor, der gegenüber der Sonotrode angeordnet ist, wird eine stehende Welle erzeugt. Im Resonanzabstand zwischen Reflektor und Wandler werden abgestrahlte und reflektierte Wellen so überlagert, dass höhere Schalldruckamplituden erzielt werden. Ein einfacher Ansatz zur Maximierung des Schallpegels im Stehwellenfeld ist die Erhöhung der Schwingungsamplituden des Wandlers, die jedoch zu Schäden oder zumindest zu einer Verringerung der Lebensdauer führen kann. Hohe Schalldrücke werden auch bei geringen Abständen zwischen Wandler und Reflektor erreicht. Das Volumen des Schallfeldes ist in diesem Fall jedoch für die meisten Prozesse zu klein. Ein weiterer Ansatz ist die Verwendung zweier entgegengesetzt angeordneter Wandler [5]. In diesem Fall erfordert jedoch die Erzeugung einer stehenden Welle eine genaue Abstimmung von Frequenz und Phase beider Wandler, was eine komplexe Steuerung erfordert. Ebenso ist es möglich, geometrische Randbedingungen des Stehwellensystems zu optimieren, sodass es zu optimaler Interferenz der Wellen kommt. Im Folgenden wird der Anschaulichkeit halber vereinfachend angenommen, dass der Wandler an seiner Sonotrodenoberfläche einzelne Schallstrahlen aussendet, die in Nähe des Wandlers nahezu parallel verlaufen und sich mit zunehmender Entfernung vom Wandler auffächern. Ein einfaches Stehwellensystem, bestehend aus ebener Sonotrode und ebenem Reflektor, erzeugt bei kleinem Abstand zwischen Sonotrode und Reflektor sehr hohe Schallpegel, da nahezu sämtliche ausgesandten Schallstrahlen in Richtung der Sonotrode reflektiert werden positive Interferenz entsteht. Erhöht man jedoch den Abstand zwischen Sonotrode und Reflektor, so nehmen die Verluste durch Schallstrahlen, die den Prozessraum verlassen, zu. Wie Abbildung 1 gezeigt, werden nur Schallstrahlen, die in etwa parallel zur Rotationsachse verlaufen, zum Wandler zurück reflektiert und tragen zum Stehwellenfeld bei. Die Strahlen haben zudem abhängig vom Abstrahlwinkel unterschiedliche Weglängen. Die Stehwellenbedingung ist demnach nur für Strahlen in der Nähe der Rotationsachse exakt erfüllt. Um dies zu vermeiden, müssen die Geometrien von Wandler und Reflektor optimiert werden. In den folgenden Abschnitten wird zunächst ein Optimierungsansatz vorgestellt. Mithilfe eines FiniteElemente-Modells werden die Auswirkungen einer optimierten Geometrie auf den maximalen Schalldruckpegel untersucht. Ergebnisse werden durch Messungen an einem experimentellen Aufbau eines Stehwellensystems validiert. Es wird gezeigt, wie sich die Optimierung der geometrischen Randbedingungen auf die Zerstäubung hochviskoser Flüssigkeiten auswirkt. author: - first_name: Paul full_name: Dunst, Paul id: '22130' last_name: Dunst - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Peter full_name: Bornmann, Peter last_name: Bornmann - first_name: 'Walter ' full_name: 'Littmann, Walter ' last_name: Littmann - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Dunst P, Hemsel T, Bornmann P, Littmann W, Sextro W. Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten. In: DAGA 2019. ; 2019.' apa: Dunst, P., Hemsel, T., Bornmann, P., Littmann, W., & Sextro, W. (2019). Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten. In DAGA 2019. Rostock. bibtex: '@inproceedings{Dunst_Hemsel_Bornmann_Littmann_Sextro_2019, title={Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten}, booktitle={DAGA 2019}, author={Dunst, Paul and Hemsel, Tobias and Bornmann, Peter and Littmann, Walter and Sextro, Walter}, year={2019} }' chicago: Dunst, Paul, Tobias Hemsel, Peter Bornmann, Walter Littmann, and Walter Sextro. “Modellbasierte Und Experimentelle Charakterisierung von Intensiven Ultraschall-Stehwellenfeldern Für Die Zerstäubung Hochviskoser Flüssigkeiten.” In DAGA 2019, 2019. ieee: P. Dunst, T. Hemsel, P. Bornmann, W. Littmann, and W. Sextro, “Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten,” in DAGA 2019, Rostock, 2019. mla: Dunst, Paul, et al. “Modellbasierte Und Experimentelle Charakterisierung von Intensiven Ultraschall-Stehwellenfeldern Für Die Zerstäubung Hochviskoser Flüssigkeiten.” DAGA 2019, 2019. short: 'P. Dunst, T. Hemsel, P. Bornmann, W. Littmann, W. Sextro, in: DAGA 2019, 2019.' conference: end_date: 2019-03-21 location: Rostock name: Deutsche Jahrestagung für Akustik - DAGA 2019 start_date: 2019-03-18 date_created: 2019-06-17T13:01:47Z date_updated: 2022-01-06T06:50:33Z department: - _id: '151' language: - iso: eng publication: DAGA 2019 status: public title: Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten type: conference user_id: '22130' year: '2019' ... --- _id: '15475' abstract: - lang: ger text: Die Achse als einzige Verbindung zwischen Fahrzeugaufbau und Rad hat die Hauptaufgabe das Rad auf der Straße zuführen. Kinematisch betrachtet übernimmt die Radaufhängung, als Teil der Achse, die Funktion, zwischen Rad und Fahrzeugaufbaueinen vertikalen Freiheitsgrad zur Aufnahme von Fahrbahnunebenheiten zu realisieren. Die aus der RadhubundElastokinematik resultierenden Radstellungsänderungen bestimmen dabei maßgeblich die Fahrdynamik. Zur objektivenBeurteilung von Radaufhängungen ist eine genaue Charakterisierung der Radhub- und Elastokinematik erforderlich.Daher wurde zur Identifikation der kinematischen, elastokinematischen und dynamischen Radaufhängungseigenschaftenam Lehrstuhl für Dynamik und Mechatronik der Universität Paderborn ein Halbachsprüfstand entwickelt. Bei der Auslegungwurde Wert auf ein möglichst breites Einsatzspektrum gelegt. Es können verschiedene Typen von Einzelradaufhängungenin Serien- oder Prototypenkonfiguration am Prüfstand analysiert werden. Er ermöglicht eine Identifikation derdynamischen Radstellungsänderungen unter verschiedenen fahrdynamischen Lastfällen und regellosen Anregungen. author: - first_name: Jan full_name: Schütte, Jan id: '22109' last_name: Schütte orcid: 0000-0001-9025-9742 - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro - first_name: Sergej full_name: Kohl, Sergej last_name: Kohl citation: ama: 'Schütte J, Sextro W, Kohl S. Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen. In: Fachtagung Mechatronik 2019. Universitätsbibliothek Paderborn, 2019; 2019. doi:10.17619/UNIPB/1-777' apa: Schütte, J., Sextro, W., & Kohl, S. (2019). Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen. Fachtagung Mechatronik 2019. Fachtagung Mechatronik 2019, Paderborn. https://doi.org/10.17619/UNIPB/1-777 bibtex: '@inproceedings{Schütte_Sextro_Kohl_2019, place={Paderborn}, title={Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen}, DOI={10.17619/UNIPB/1-777}, booktitle={Fachtagung Mechatronik 2019}, publisher={Universitätsbibliothek Paderborn, 2019}, author={Schütte, Jan and Sextro, Walter and Kohl, Sergej}, year={2019} }' chicago: 'Schütte, Jan, Walter Sextro, and Sergej Kohl. “Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen.” In Fachtagung Mechatronik 2019. Paderborn: Universitätsbibliothek Paderborn, 2019, 2019. https://doi.org/10.17619/UNIPB/1-777.' ieee: 'J. Schütte, W. Sextro, and S. Kohl, “Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen,” presented at the Fachtagung Mechatronik 2019, Paderborn, 2019, doi: 10.17619/UNIPB/1-777.' mla: Schütte, Jan, et al. “Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen.” Fachtagung Mechatronik 2019, Universitätsbibliothek Paderborn, 2019, 2019, doi:10.17619/UNIPB/1-777. short: 'J. Schütte, W. Sextro, S. Kohl, in: Fachtagung Mechatronik 2019, Universitätsbibliothek Paderborn, 2019, Paderborn, 2019.' conference: end_date: 28.03.2019 location: Paderborn name: Fachtagung Mechatronik 2019 start_date: 27.03.2019 date_created: 2020-01-09T10:00:32Z date_updated: 2024-05-27T07:49:25Z department: - _id: '151' doi: 10.17619/UNIPB/1-777 language: - iso: ger place: Paderborn publication: Fachtagung Mechatronik 2019 publication_status: published publisher: Universitätsbibliothek Paderborn, 2019 status: public title: Halbachsprüfstand zur kinematischen, elastokinematischen und dynamischen Charakterisierung von Radaufhängungen type: conference user_id: '22109' year: '2019' ... --- _id: '10334' abstract: - lang: eng text: Ultrasonic joining is a common industrial process. In the electronics industry it is used to form electrical connections, including those of dissimilar materials. Multiple influencing factors in ultrasonic joining are known and extensively investigated; process parameters like ultrasonic power, bond force, and bonding frequency of the ultrasonic vibration are known to have a high impact on a reliable joining process and need to be adapted for each new application with different geometry or materials. This contribution is focused on increasing ultrasonic power transmitted to the interface and keeping mechanical stresses during ultrasonic bonding low by using a multi-dimensional ultrasonic transducer concept. Bonding results for a new designed connector pin in IGBT-modules achieved by multi- and one-dimensional bonding are discussed. author: - first_name: Reinhard full_name: Schemmel, Reinhard id: '28647' last_name: Schemmel - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Collin full_name: Dymel, Collin id: '66833' last_name: Dymel - first_name: Matthias full_name: Hunstig, Matthias last_name: Hunstig - first_name: Michael full_name: Brökelmann, Michael last_name: Brökelmann - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Schemmel R, Hemsel T, Dymel C, Hunstig M, Brökelmann M, Sextro W. Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding. Sensors and Actuators A: Physical. 2019;295:653-662. doi:10.1016/j.sna.2019.04.025' apa: 'Schemmel, R., Hemsel, T., Dymel, C., Hunstig, M., Brökelmann, M., & Sextro, W. (2019). Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding. Sensors and Actuators A: Physical, 295, 653–662. https://doi.org/10.1016/j.sna.2019.04.025' bibtex: '@article{Schemmel_Hemsel_Dymel_Hunstig_Brökelmann_Sextro_2019, title={Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding}, volume={295}, DOI={10.1016/j.sna.2019.04.025}, journal={Sensors and Actuators A: Physical}, author={Schemmel, Reinhard and Hemsel, Tobias and Dymel, Collin and Hunstig, Matthias and Brökelmann, Michael and Sextro, Walter}, year={2019}, pages={653–662} }' chicago: 'Schemmel, Reinhard, Tobias Hemsel, Collin Dymel, Matthias Hunstig, Michael Brökelmann, and Walter Sextro. “Using Complex Multi-Dimensional Vibration Trajectories in Ultrasonic Bonding and Welding.” Sensors and Actuators A: Physical 295 (2019): 653–62. https://doi.org/10.1016/j.sna.2019.04.025.' ieee: 'R. Schemmel, T. Hemsel, C. Dymel, M. Hunstig, M. Brökelmann, and W. Sextro, “Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding,” Sensors and Actuators A: Physical, vol. 295, pp. 653–662, 2019, doi: 10.1016/j.sna.2019.04.025.' mla: 'Schemmel, Reinhard, et al. “Using Complex Multi-Dimensional Vibration Trajectories in Ultrasonic Bonding and Welding.” Sensors and Actuators A: Physical, vol. 295, 2019, pp. 653–62, doi:10.1016/j.sna.2019.04.025.' short: 'R. Schemmel, T. Hemsel, C. Dymel, M. Hunstig, M. Brökelmann, W. Sextro, Sensors and Actuators A: Physical 295 (2019) 653–662.' date_created: 2019-07-01T07:32:07Z date_updated: 2023-09-21T14:12:15Z department: - _id: '151' doi: 10.1016/j.sna.2019.04.025 intvolume: ' 295' keyword: - Ultrasonic bonding - Ultrasonic welding - Multi-dimensional bonding - Complex vibration - Multi-frequent - Two-dimensional friction model language: - iso: eng page: 653 - 662 project: - _id: '93' grant_number: MP-1-1-015 name: Hochleistungsbonden in energieeffizienten Leistungshalbleitermodulen publication: 'Sensors and Actuators A: Physical' publication_identifier: issn: - 0924-4247 quality_controlled: '1' status: public title: Using complex multi-dimensional vibration trajectories in ultrasonic bonding and welding type: journal_article user_id: '210' volume: 295 year: '2019' ... --- _id: '13460' abstract: - lang: eng text: 'Remaining useful lifetime (RUL) predictions as part of a condition monitoring system are focused in more and more research and industrial applications. To establish an efficient and precise estimate of the RUL of a technical product, different uncertainties have to be handled. To minimize the uncertainties of the RUL estimation, a reliable and accurate prognostic approach as well as a good failure threshold are important. Regarding the failure threshold, most often an expert sets a fixed failure threshold. However, neither the a priori known failure threshold nor a fixedthreshold value are feasible in every application. Especially in the case of varying characteristics of the monitored system, an adaptive failure threshold is of great importance concerning the accuracy of the RUL estimation. Rubber-metal-elements, which are used in a wide range of applications for vibration and sound isolation, are mon-itored by thermocouples to allow for lifetime predictions. Therefore, the element’s state is described by its temper-ature during its service life. Aiming to establish accurate RUL predictions of a rubber-metal-element, uncertainties due to nonlinear material characteristics and changing operational conditions have to be considered. Consequently, different temperature-based failure threshold definitions are implemented and compared within a particle filtering approach. ' author: - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Lennart full_name: Schinke, Lennart last_name: Schinke - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Bender A, Schinke L, Sextro W. Remaining useful lifetime prediction based on adaptive failure thresholds. In: Beer M, Zio E, eds. Proceedings of the 29th European Safety and Reliability Conference (ESREL2019). ; 2019:1262-1269.' apa: Bender, A., Schinke, L., & Sextro, W. (2019). Remaining useful lifetime prediction based on adaptive failure thresholds. In M. Beer & E. Zio (Eds.), Proceedings of the 29th European Safety and Reliability Conference (ESREL2019) (Issue 29, pp. 1262–1269). bibtex: '@inproceedings{Bender_Schinke_Sextro_2019, title={Remaining useful lifetime prediction based on adaptive failure thresholds}, number={29}, booktitle={Proceedings of the 29th European Safety and Reliability Conference (ESREL2019)}, author={Bender, Amelie and Schinke, Lennart and Sextro, Walter}, editor={Beer, Michael and Zio, Enrico}, year={2019}, pages={1262–1269} }' chicago: Bender, Amelie, Lennart Schinke, and Walter Sextro. “Remaining Useful Lifetime Prediction Based on Adaptive Failure Thresholds.” In Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), edited by Michael Beer and Enrico Zio, 1262–69, 2019. ieee: A. Bender, L. Schinke, and W. Sextro, “Remaining useful lifetime prediction based on adaptive failure thresholds,” in Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), Hannover, 2019, no. 29, pp. 1262–1269. mla: Bender, Amelie, et al. “Remaining Useful Lifetime Prediction Based on Adaptive Failure Thresholds.” Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), edited by Michael Beer and Enrico Zio, no. 29, 2019, pp. 1262–69. short: 'A. Bender, L. Schinke, W. Sextro, in: M. Beer, E. Zio (Eds.), Proceedings of the 29th European Safety and Reliability Conference (ESREL2019), 2019, pp. 1262–1269.' conference: end_date: 2019.09.26 location: Hannover name: '29th European Safety and Reliability Conference ' start_date: 2019.09.22 date_created: 2019-09-30T08:49:19Z date_updated: 2023-09-22T07:31:53Z department: - _id: '151' editor: - first_name: Michael full_name: Beer, Michael last_name: Beer - first_name: Enrico full_name: Zio, Enrico last_name: Zio issue: '29' keyword: - RUL prediction - adaptive threshold - prognostics - condition monitoring language: - iso: eng main_file_link: - open_access: '1' url: http://rpsonline.com.sg/proceedings/9789811127243/html/0445.xml oa: '1' page: 1262-1269 publication: Proceedings of the 29th European Safety and Reliability Conference (ESREL2019) publication_identifier: isbn: - 978-981-11-2724-3 publication_status: published quality_controlled: '1' status: public title: Remaining useful lifetime prediction based on adaptive failure thresholds type: conference user_id: '54290' year: '2019' ...